A perennial herb, sending up a smooth, visually solitary and leafless stem, paniculately branched above, I to 3 feet high, with a tuft of basal leaves spreading on the ground. Leaves smooth or sometimes hairy, characteristically marked with purple veins, suggestive of the markings on a snakeskin, oblong-spatulate, blunt at the apex, narrowed at the base into petioles, though sometimes sessile, 1 to 5 inches long, one-half to 11/2 inches wide, paler on the under surface, the margins glandular-denticulate. Inflorescence consisting of several yellow heads, about two-thirds of an inch broad, each containing fifteen to forty ray flowers, and borne on rather long, slender, spreading peduncles, smooth or slightly glandular-hairy. Involucre cylindric, abotit one-fourth of an inch high, with one series of long, narrow, nearly smooth bracts and a few short outer ones.
Memoir 15 N. Y. State Museum
Rattlesnake-Weed; Poor-Robin S-Plantain - Hieracium venosum
In dry woods and thickets, usually in poor or sandy soil. Maine and Ontario to Manitoba, south to Georgia, Kentucky and Nebraska. Flowering from late in May to October. Individuals are sometimes found without the purple-colored veins in the leaves.